Software Engineer, Payments at whatnot

This role is ideal for a mid-to-senior level backend-leaning engineer with 3–5+ years of experience who thrives in high-growth startup environments. While the team primarily uses Python, Elixir, and JavaScript, they value language-agnostic problem solvers who can lead projects from inception to production. You should have a proven track record of building scalable systems and a willingness to jump into the frontend when necessary. You will join the Payments team, which is the backbone of the platform’s global operations, handling billions of dollars in transactions annually. This is a high-impact position offering the flexibility of remote work, provided you are within commuting distance of the Kraków, Poland hub for occasional in-person collaboration. It’s a fast-paced environment where "shipping lightning-fast" is the norm and individual autonomy is highly encouraged. **You might be a good fit if you...** * Have experience building large-scale systems for millions of users (payments or fintech experience is a major plus). * Are a "product-first" engineer who prioritizes user experience over technical perfection. * Enjoy a high-trust culture where you own projects end-to-end without needing constant direction. * Are comfortable learning and switching between multiple programming languages quickly.